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mtd: partitions: Add RedBoot FIS DT bindings

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This adds device tree bindings for the RedBoot FIS partition
format.

Cc: devicetree@vger.kernel.org
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
This commit is contained in:
Linus Walleij 2018-11-10 21:01:26 +01:00 committed by Boris Brezillon
parent 43f1fd01a6
commit e0be6a68b5
1 changed files with 27 additions and 0 deletions
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Documentation/devicetree/bindings/mtd/partitions/redboot-fis.txt Normal file
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RedBoot FLASH Image System (FIS) Partitions
===========================================
The FLASH Image System (FIS) directory is a flash description
format closely associated with the RedBoot boot loader.
It uses one single flash eraseblock in the flash to store an index of
all images in the flash.
This block size will vary depending on flash but is typically
32 KB in size.
Required properties:
- compatible : (required) must be "redboot-fis"
- fis-index-block : (required) a index to the eraseblock containing
the FIS directory on this device. On a flash memory with 32KB
eraseblocks, 0 means the first eraseblock at 0x00000000, 1 means the
second eraseblock at 0x00008000 and so on.
Example:
flash@0 {
partitions {
compatible = "redboot-fis";
fis-index-block = <0>;
};
};